US5974283A - Paper feed device for duplex printing apparatus - Google Patents

Paper feed device for duplex printing apparatus Download PDF

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Publication number
US5974283A
US5974283A US09/196,256 US19625698A US5974283A US 5974283 A US5974283 A US 5974283A US 19625698 A US19625698 A US 19625698A US 5974283 A US5974283 A US 5974283A
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US
United States
Prior art keywords
gear
link
paper
hinge
reverse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US09/196,256
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English (en)
Inventor
Won-Mo Cho
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
S Printing Solution Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Assigned to SAMSUNG ELECTRONICS CO., LTD. reassignment SAMSUNG ELECTRONICS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHO, WON-MO
Application granted granted Critical
Publication of US5974283A publication Critical patent/US5974283A/en
Assigned to S-PRINTING SOLUTION CO., LTD. reassignment S-PRINTING SOLUTION CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SAMSUNG ELECTRONICS CO., LTD
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/58—Article switches or diverters
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H85/00—Recirculating articles, i.e. feeding each article to, and delivering it from, the same machine work-station more than once
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/23—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
    • G03G15/231—Arrangements for copying on both sides of a recording or image-receiving material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/33—Modifying, selecting, changing orientation
    • B65H2301/333—Inverting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/40—Toothed gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/40—Identification
    • B65H2511/414—Identification of mode of operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535—Stable handling of copy medium
    • G03G2215/00556—Control of copy medium feeding
    • G03G2215/00586—Control of copy medium feeding duplex mode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S271/00—Sheet feeding or delivering
    • Y10S271/902—Reverse direction of sheet movement

Definitions

  • the present invention relates to a duplex printing apparatus, and more particularly, to a paper feed device for reversing a paper feed path for duplex printing.
  • An existing type of duplex printing apparatus includes a main body and a duplex unit installed at one side of the main body.
  • a first delivery roller and a first feed roller are respectively installed at the upper and lower sides of the duplex unit.
  • a driving motor connected to drive the first delivery roller is installed at the inner side of the duplex unit.
  • a solenoid is installed under the driving motor.
  • the first delivery roller and the first feed roller respectively touch a second delivery roller and a second feed roller installed at corresponding portions of the main body, thereby forming one paper feed path.
  • a central rod of the solenoid moves outward to push an upper portion of a reverse paper guide during simplex printing, and moves inward to release the reverse paper guide during duplex printing.
  • a sheet picked up by the revolution of a pickup roller from a paper cassette is fed to a developing unit through a paper guide.
  • An image is formed on one (front) side of the sheet while the sheet passes between a photoconductive drum of the developing unit and a fixing roller.
  • the image is fixed on the sheet when the sheet passes between a heating roller and a pressure roller.
  • the sheet passes through the upper side of a reverse paper guide.
  • the sheet fed along a paper feed path is discharged to the exterior of the main body by the revolution of first and second exit rollers.
  • the central rod of the solenoid is retracted.
  • the sheet, printed on the front side is fed between the delivery rollers through the lower side of the reverse paper guide.
  • the sheet is sensed by a sensor and the delivery rollers are driven in reverse by the driving motor.
  • the sheet is fed between the first and second feed rollers along a reverse paper feed path.
  • the sheet is fed between third and fourth feed rollers and is again picked up by the pickup roller. Thereafter, the image forming process for the back side of the sheet is performed.
  • the duplex printing unit required for duplex printing has a driving motor for driving the delivery rollers and a solenoid for controlling the reverse paper guide. Since the duplex unit includes a driving motor and a number of rollers, its cost is high and its internal construction becomes complicated. Therefore, the duplex unit is not included with the main body of the duplex printing apparatus as standard equipment, but rather is installed as an accessory at one side of the main body as needed by the user.
  • U.S. Pat. No. 4,835,567 to Ogata entitled Paper Re-Feeding Apparatus Of Image Forming Apparatus discusses duplex copying involving guiding the paper through a gate downward by a turn unit onto a stacker with other sheets, where the paper is picked up, sent through switchback rollers and guided by a gate to the developing and fixing units where the paper is printed on the other side.
  • This apparatus has two motors, and requires the activation of several gates as well as stopping and reversal of two pairs of rollers to achieve duplex printing.
  • the patent deals with a device for detecting the paper jam caused when the paper is partially ejected and then reversed back for duplex printing, but in the process adheres to papers already in the tray. This device is thus an added layer of complexity to solve a problem created by a certain duplex printing arrangement.
  • duplex printing apparatus where the duplex printing mechanism is of simple design and low cost, so that duplex printing can be incorporated cheaply as standard equipment.
  • the present invention provides a paper feed device for a duplex printing apparatus which includes a main gear turning by a main motor; a first coupling gear engaged with the main gear; an exit roller gear engaged with the first coupling gear and coupled to an axle of an exit roller; a hinge gear engaged with the first coupling gear; a link gear engaged with the hinge gear; a coupling link having both ends coupled to the hinge gear and the link gear and turning round an axle of the hinge gear; a reverse feed gear installed under the coupling link; a reversing, or delivery, roller gear engaged with the reverse feed gear and coupled to an axle of a reversing, or delivery, roller; a forward feed gear (or second coupling gear) engaged with the reversing roller gear; an idle gear engaged with the forward feed gear and installed over the link gear; a hinge link having one end coupled by a link hinge to one side of a main body and having the other end coupled to an end of a solenoid; an arm link extended upwards from one side of the hinge link;
  • FIG. 1 is an elevational diagram schematically showing the internal construction of an existing duplex printing apparatus
  • FIG. 2 is an elevational diagram showing the simplex printing operation of a paper feed device of a duplex printing apparatus according to the present invention.
  • FIG. 3 is an elevational diagram showing the duplex printing operation of a paper feed device of a duplex printing apparatus according to the present invention.
  • FIG. 1 schematically shows the internal construction of an existing duplex printing apparatus.
  • the duplex printing apparatus includes main body 100 and duplex unit 20 installed at one side of main body 100.
  • First reversing, or delivery, roller 16a and first feed roller 17a are respectively installed at the upper and lower sides of duplex unit 20.
  • Driving motor 14 connected to drive first reversing roller 16a is installed at the inner side of duplex unit 20.
  • Solenoid 13 is installed under driving motor 14.
  • first reversing roller 16a and first feed roller 17a respectively touch second reversing, or delivery, roller 16b and second feed roller 17b installed at corresponding portions of main body 100, thereby forming one paper feed path.
  • a central rod of solenoid 13 moves outward to push an upper portion of reverse paper guide 12 during simplex printing, and moves inward to release reverse paper guide 12 during duplex printing.
  • the central rod of solenoid 13 is retracted, moving into solenoid 13.
  • the sheet on the front side of which the image was formed while passing between heating roller 10 and the pressure roller 11, is fed between reversing rollers 16a and 16b through the lower side of reverse paper guide 12.
  • the sheet is sensed by a sensor (not shown) and reversing rollers 16a and 16b are rotated reversely by driving motor 14.
  • the sheet is fed between the first and second feed rollers 17a and 17b along reverse paper feed path "B".
  • the sheet is fed between third and fourth feed rollers 18a and 18b and again picked up by pickup roller 4. Thereafter, the image forming process for the back side of the sheet is performed.
  • duplex unit 20 having driving motor 14 for driving the reversing rollers 16a and 16b and solenoid 13 for controlling reverse paper guide 12. Since duplex unit 20 includes driving motor 14 and a plurality of rollers 16a and 17a, its cost is high and its internal construction becomes complicated. Therefore, the duplex unit is not included as part of the main body of the duplex printing apparatus as standard equipment, but is installed as an accessory at one side of the main body according to a demand from the user.
  • FIGS. 2 and 3 A paper feed device for a duplex printing apparatus according to the present invention is shown in FIGS. 2 and 3.
  • This device includes main gear 35 coupled to main motor 60, first coupling gear 36 engaged with main gear 35, exit roller gear 37 engaged with first coupling gear 36 and coupled to an axle of first exit roller 15a, hinge gear 38 engaged with first coupling gear 36, and link gear 33 engaged with hinge gear 38.
  • Coupling link 34 has one end coupled to hinge gear 38 and another end coupled to link gear 33, and turns around hinge gear 38.
  • Reverse feed gear 39 is installed lower than coupling link 34, such that link gear 33 engages reverse feed gear 39 when in the position shown in FIG. 2.
  • Reversing roller gear 40 engaged with reverse feed gear 39 is coupled to an axle of first reversing roller 16a.
  • Forward feed (or second coupling) gear 41 engages with reversing roller gear 40.
  • Idle gear 42 engaged with forward feed gear 41 is installed over link gear 33, such that link gear 33 engages idle gear 42 when in the position shown in FIG. 3.
  • Hinge link 30 has one end coupled by link hinge 52 and another end coupled to a piston rod of solenoid 13. Arm link 31 is extended upwards from the center of hinge link 30.
  • Reverse paper guide 12 has a middle part coupled to the upper side of arm link 31 by a guide hinge.
  • Vertical link 32 has one end coupled to the center of hinge link 30 by a hinge and another end coupled by a hinge to coupling link 34 at a position toward link gear 33.
  • sheet 3 is picked up by the revolution of pickup roller 4 from atop paper plate 2 in paper cassette 1 and is fed to developing unit 6 through paper guide 5, as shown in FIG. 2.
  • the sheet on the front side of which the image was formed while passing between photoconductive drum 7 of developing unit 6 and fixing roller 8 which is connected to exposing unit 9, passes between heating roller 10 and pressure roller 11.
  • the sheet is fed along paper feed path "A" through the upper side of reverse paper guide 12.
  • Main gear 35 coupled to main motor 60 turns counterclockwise and first coupling gear 37 also turns counterclockwise. Therefore, first exit roller 15a turns counterclockwise.
  • the sheet fed along the paper feed path "A" is discharged to the exterior of main body 100 of the duplexing printing apparatus by first and second exit rollers 15a and 15b.
  • the sheet which has passed between heating roller 10 and pressure roller 11 is then fed between first and second reversing rollers 16a and 16b through the lower side of reverse paper guide 12 along reverse paper feed path "B".
  • a sensor (not shown) senses the sheet. If sensing information from the sensor is transmitted to the controller, the controller cuts off the voltage applied to solenoid 13. Then the central rod of solenoid 13 moves outward and hinge link 30 and arm link 31 return to their respective positions for the simplex printing. Vertical link 32 moves downwards, and link gear 33 engages with reverse feed gear 39.
  • Reversing roller gear 40 turns clockwise and first reversing roller 16a also turns clockwise.
  • the sheet between the reversing rollers 16a and 16b now moves downwards along reverse paper feed path "B", and passes between first and second feed rollers 17a and 17b and between third and fourth feed rollers 18a and 18b.
  • the sheet is again fed to developing unit 6.
  • An image is then formed on the back side of the sheet and the sheet is then discharged to the exterior of main body 100 of the duplex printing apparatus along the paper feed path "A".
  • the paper feed device allows the duplex printing process of a sheet using the main motor and a solenoid, without an additional driving motor. Therefore, the manufacturing cost of the duplex printing apparatus can be reduced.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Conveyance By Endless Belt Conveyors (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US09/196,256 1997-11-27 1998-11-27 Paper feed device for duplex printing apparatus Expired - Fee Related US5974283A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019970063405A KR100263064B1 (ko) 1997-11-27 1997-11-27 양면인쇄기의용지이송장치
KR97-63405 1997-11-27

Publications (1)

Publication Number Publication Date
US5974283A true US5974283A (en) 1999-10-26

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US09/196,256 Expired - Fee Related US5974283A (en) 1997-11-27 1998-11-27 Paper feed device for duplex printing apparatus

Country Status (5)

Country Link
US (1) US5974283A (ko)
EP (1) EP0919880B1 (ko)
KR (1) KR100263064B1 (ko)
CN (1) CN1093797C (ko)
DE (1) DE69807173T2 (ko)

Cited By (28)

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Publication number Priority date Publication date Assignee Title
US6331004B1 (en) * 1997-10-24 2001-12-18 Oki Data Corporation Image recording device having a reversing section
US6618577B2 (en) * 2001-03-09 2003-09-09 Canon Kabushiki Kaisha Sheet guiding device with electromagnetic shield plate serving as one guide surface and image forming apparatus including the same
US20030170048A1 (en) * 2002-03-11 2003-09-11 Samsung Electronics Co., Ltd. Drive mechanism for electrophotographic image forming apparatus
US20030235449A1 (en) * 2002-06-21 2003-12-25 Samsung Electronics Co., Ltd. Driving apparatus and method for a double-side printable machine
US20050025545A1 (en) * 2003-07-29 2005-02-03 Sarah Zeller Stapler/stacker for front-oriented front-access printers
US20050110858A1 (en) * 2003-11-24 2005-05-26 Agfa-Gevaert Alignment of recording material in a printing device
US20050179191A1 (en) * 2002-04-08 2005-08-18 Claudio Vernetti Paper feeding device for dot printers for example ink jet photographic printers
US20050186007A1 (en) * 2004-02-20 2005-08-25 International Business Machines Corporation Duplex check printer having a separately driven document inverting loop
US20050214041A1 (en) * 2004-03-25 2005-09-29 Carter Daniel L Integrated fuser unit and drive system
US20050254871A1 (en) * 2004-05-17 2005-11-17 Samsung Electronics Co., Ltd. Paper reverse-feeding apparatus for image forming apparatus
US20060233558A1 (en) * 2005-04-15 2006-10-19 Samsung Electronics Co., Ltd. Jam removing device and image forming apparatus including the same, and jam removing method
US20060232793A1 (en) * 2003-04-09 2006-10-19 Tatsuya Shinkawa Recording medium delivery mechanism and image forming device having the same
US20060280534A1 (en) * 2005-06-14 2006-12-14 Lexmark International, Inc. Apparatus for and method of creating a duplex scan using a single pass ADF
US20070069451A1 (en) * 2005-09-26 2007-03-29 Brother Kogyo Kabushiki Kaisha document or sheet material feeder
US20070122225A1 (en) * 2005-11-30 2007-05-31 Brother Kogyo Kabushiki Kaisha Both side printable printer
US20070166090A1 (en) * 2006-01-19 2007-07-19 Dell Products L.P. Method and apparatus for printing
US20080044212A1 (en) * 2006-08-17 2008-02-21 Fuji Xerox Co., Ltd. Drive switching mechanism and image forming apparatus including same
US20080253819A1 (en) * 2006-08-25 2008-10-16 Funai Electric Co., Ltd. Image formation device
US20090085948A1 (en) * 2007-09-28 2009-04-02 Brother Kogyo Kabushiki Kaisha Image recording apparatus
US20090085949A1 (en) * 2007-09-28 2009-04-02 Brother Kogyo Kabushiki Kaisha Image recording apparatus
US20110293344A1 (en) * 2010-05-25 2011-12-01 Kyocera Mita Corporation Conveyor and image forming apparatus including conveyor
US20120081487A1 (en) * 2010-09-30 2012-04-05 Ricoh Company, Ltd. Image forming apparatus
US20120223471A1 (en) * 2011-03-02 2012-09-06 Oki Data Corporation Image forming apparatus
US20130071166A1 (en) * 2011-09-20 2013-03-21 Brother Kogyo Kabushiki Kaisha Image Formation Device
US20140138901A1 (en) * 2012-11-16 2014-05-22 Brother Kogyo Kabushiki Kaisha Image Reading Apparatus
US20140328609A1 (en) * 2012-08-29 2014-11-06 Brother Kogyo Kabushiki Kaisha Image Forming Apparatus
US20150338786A1 (en) * 2014-05-26 2015-11-26 Konica Minolta Inc. Sheet conveying device and image forming apparatus
US10996610B2 (en) * 2018-12-21 2021-05-04 Toshiba Tec Kabushiki Kaisha Sheet conveying apparatus

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JP2003292224A (ja) 2002-01-31 2003-10-15 Seiko Epson Corp インクジェット式記録装置及び排紙装置
JP4336638B2 (ja) * 2003-12-03 2009-09-30 キヤノン株式会社 シート搬送装置、シート処理装置、及び画像形成装置
KR101335993B1 (ko) 2007-08-03 2013-12-04 삼성전자주식회사 화상형성장치
JP2009155054A (ja) * 2007-12-27 2009-07-16 Brother Ind Ltd 画像記録装置
JP2012162378A (ja) * 2011-02-09 2012-08-30 Konica Minolta Business Technologies Inc 画像形成装置
JP7089667B2 (ja) * 2018-04-05 2022-06-23 セイコーエプソン株式会社 記録装置
CN112659762A (zh) * 2020-12-30 2021-04-16 宁波得力科贝技术有限公司 一种双面打印机

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Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6331004B1 (en) * 1997-10-24 2001-12-18 Oki Data Corporation Image recording device having a reversing section
US6618577B2 (en) * 2001-03-09 2003-09-09 Canon Kabushiki Kaisha Sheet guiding device with electromagnetic shield plate serving as one guide surface and image forming apparatus including the same
US20030170048A1 (en) * 2002-03-11 2003-09-11 Samsung Electronics Co., Ltd. Drive mechanism for electrophotographic image forming apparatus
US6754456B2 (en) * 2002-03-11 2004-06-22 Samsung Electronics Co., Ltd. Drive mechanisim for electrophotgraphic image forming apparatus
US7513501B2 (en) * 2002-04-08 2009-04-07 Telecom Italia S.P.A. Paper feeding device for dot printers for example ink jet photographic printers
US20050179191A1 (en) * 2002-04-08 2005-08-18 Claudio Vernetti Paper feeding device for dot printers for example ink jet photographic printers
US20030235449A1 (en) * 2002-06-21 2003-12-25 Samsung Electronics Co., Ltd. Driving apparatus and method for a double-side printable machine
US6810224B2 (en) * 2002-06-21 2004-10-26 Samsung Electronics Co., Ltd. Driving apparatus and method for a double-side printable machine
US20060232793A1 (en) * 2003-04-09 2006-10-19 Tatsuya Shinkawa Recording medium delivery mechanism and image forming device having the same
US7850168B2 (en) * 2003-04-09 2010-12-14 Sharp Kabushiki Kaisha Recording medium delivery mechanism and image forming device having the same
US7133640B2 (en) * 2003-07-29 2006-11-07 Hewlett-Packard Development Company, L.P. Stapler/stacker for front-oriented front-access printers
US20050025545A1 (en) * 2003-07-29 2005-02-03 Sarah Zeller Stapler/stacker for front-oriented front-access printers
US7338156B2 (en) * 2003-11-24 2008-03-04 Agfa Healthcare Alignment of recording material in a printing device
US20050110858A1 (en) * 2003-11-24 2005-05-26 Agfa-Gevaert Alignment of recording material in a printing device
US6966714B2 (en) * 2004-02-20 2005-11-22 International Business Machines Corporation Duplex check printer having a separately driven document inverting loop
US20050186007A1 (en) * 2004-02-20 2005-08-25 International Business Machines Corporation Duplex check printer having a separately driven document inverting loop
US20050214041A1 (en) * 2004-03-25 2005-09-29 Carter Daniel L Integrated fuser unit and drive system
US7274903B2 (en) 2004-03-25 2007-09-25 Lexmark International, Inc. Integrated fuser unit and drive system for use in an electrophotographic imaging process
US20050254871A1 (en) * 2004-05-17 2005-11-17 Samsung Electronics Co., Ltd. Paper reverse-feeding apparatus for image forming apparatus
US7379702B2 (en) * 2004-05-17 2008-05-27 Samsung Electronics Co., Ltd. Paper reverse-feeding apparatus for image forming apparatus
US20060233558A1 (en) * 2005-04-15 2006-10-19 Samsung Electronics Co., Ltd. Jam removing device and image forming apparatus including the same, and jam removing method
US20060280534A1 (en) * 2005-06-14 2006-12-14 Lexmark International, Inc. Apparatus for and method of creating a duplex scan using a single pass ADF
US20070069451A1 (en) * 2005-09-26 2007-03-29 Brother Kogyo Kabushiki Kaisha document or sheet material feeder
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Also Published As

Publication number Publication date
EP0919880B1 (en) 2002-08-14
DE69807173T2 (de) 2002-12-05
CN1093797C (zh) 2002-11-06
DE69807173D1 (de) 2002-09-19
KR100263064B1 (ko) 2000-08-01
CN1220211A (zh) 1999-06-23
EP0919880A2 (en) 1999-06-02
KR19990042562A (ko) 1999-06-15
EP0919880A3 (en) 2000-10-25

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